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  2. Data assimilation - Wikipedia

    en.wikipedia.org/wiki/Data_assimilation

    The difference between the forecast and the observations at that time is called the departure or the innovation (as it provides new information to the data assimilation process). A weighting factor is applied to the innovation to determine how much of a correction should be made to the forecast based on the new information from the observations.

  3. Fan chart (time series) - Wikipedia

    en.wikipedia.org/wiki/Fan_chart_(time_series)

    There are several ways to represent the forecast density depending on the shape of the forecasting distribution. If the forecast density is symmetric ( normal or Student's t , for instance), the fan centers at the mean (which coincides with the mode and median ) forecast, and the ranges expand like confidence intervals by adding and subtracting ...

  4. Mixed-data sampling - Wikipedia

    en.wikipedia.org/wiki/Mixed-data_sampling

    The MIDAS can also be used for machine learning time series and panel data nowcasting. [6] [7] The machine learning MIDAS regressions involve Legendre polynomials.High-dimensional mixed frequency time series regressions involve certain data structures that once taken into account should improve the performance of unrestricted estimators in small samples.

  5. Time series - Wikipedia

    en.wikipedia.org/wiki/Time_series

    Time series forecasting is the use of a model to predict future values based on previously ... Interpolation is useful where the data surrounding the missing data is ...

  6. Exponential smoothing - Wikipedia

    en.wikipedia.org/wiki/Exponential_smoothing

    Exponential smoothing puts substantial weight on past observations, so the initial value of demand will have an unreasonably large effect on early forecasts. This problem can be overcome by allowing the process to evolve for a reasonable number of periods (10 or more) and using the average of the demand during those periods as the initial forecast.

  7. Inflation and retail sales data greet a roaring stock market ...

    www.aol.com/finance/inflation-retail-sales-data...

    Prices are set to rise 0.2% on a month-over-month basis, per economist projections, in line with the increase seen in September. ... CPI is forecast to have risen 3.3% over last year in October ...

  8. Regression analysis - Wikipedia

    en.wikipedia.org/wiki/Regression_analysis

    First, regression analysis is widely used for prediction and forecasting, where its use has substantial overlap with the field of machine learning. Second, in some situations regression analysis can be used to infer causal relationships between the independent and dependent variables.

  9. 3 Stock Market Mistakes Investors Should Avoid in 2025 - AOL

    www.aol.com/3-stock-market-mistakes-investors...

    AAPL Market Cap data by YCharts. Other noteworthy examples include selling out of oil and gas stocks during the downturn of 2020. In the last four years, the energy sector is up 129%.